1 files changed, 60 insertions, 0 deletions
diff --git a/vpx_dsp/arm/vpx_convolve_neon_dotprod.c b/vpx_dsp/arm/vpx_convolve_neon_dotprod.c
new file mode 100644
index 000000000..400e26b30
--- /dev/null
+++ b/vpx_dsp/arm/vpx_convolve_neon_dotprod.c
@@ -0,0 +1,60 @@
+/*
+ *  Copyright (c) 2023 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <assert.h>
+
+#include "./vpx_dsp_rtcd.h"
+#include "vpx_dsp/arm/vpx_convolve8_neon.h"
+#include "vpx_dsp/vpx_dsp_common.h"
+#include "vpx_ports/mem.h"
+
+void vpx_convolve8_neon_dotprod(const uint8_t *src, ptrdiff_t src_stride,
+                                uint8_t *dst, ptrdiff_t dst_stride,
+                                const InterpKernel *filter, int x0_q4,
+                                int x_step_q4, int y0_q4, int y_step_q4, int w,
+                                int h) {
+  /* Given our constraints: w <= 64, h <= 64, taps == 8 we can reduce the
+   * maximum buffer size to 64 * (64 + 7). */
+  uint8_t temp[64 * 71];
+
+  /* Account for the vertical phase needing 3 lines prior and 4 lines post. */
+  const int intermediate_height = h + 7;
+
+  assert(y_step_q4 == 16);
+  assert(x_step_q4 == 16);
+
+  /* Filter starting 3 lines back. */
+  vpx_convolve8_2d_horiz_neon_dotprod(src - src_stride * 3, src_stride, temp, w,
+                                      filter, x0_q4, x_step_q4, y0_q4,
+                                      y_step_q4, w, intermediate_height);
+
+  /* Step into the temp buffer 3 lines to get the actual frame data. */
+  vpx_convolve8_vert_neon_dotprod(temp + w * 3, w, dst, dst_stride, filter,
+                                  x0_q4, x_step_q4, y0_q4, y_step_q4, w, h);
+}
+
+void vpx_convolve8_avg_neon_dotprod(const uint8_t *src, ptrdiff_t src_stride,
+                                    uint8_t *dst, ptrdiff_t dst_stride,
+                                    const InterpKernel *filter, int x0_q4,
+                                    int x_step_q4, int y0_q4, int y_step_q4,
+                                    int w, int h) {
+  uint8_t temp[64 * 71];
+  const int intermediate_height = h + 7;
+
+  assert(y_step_q4 == 16);
+  assert(x_step_q4 == 16);
+
+  vpx_convolve8_2d_horiz_neon_dotprod(src - src_stride * 3, src_stride, temp, w,
+                                      filter, x0_q4, x_step_q4, y0_q4,
+                                      y_step_q4, w, intermediate_height);
+
+  vpx_convolve8_avg_vert_neon_dotprod(temp + w * 3, w, dst, dst_stride, filter,
+                                      x0_q4, x_step_q4, y0_q4, y_step_q4, w, h);
+}